Today we do context modeling using business process modeling (for instance using UML activity models or BPMN) supplemented by Use Cases to flesh out the detail of the tasks. In the past it was ...

Data flow diagrams (DFDs) are visual tools that help you understand how data moves and transforms within a system or process. They show the sources, destinations, and processes of data, as well as ...

ER diagrams have a proven track record to rep-resent data structure and relationships, in many CS problems, beyond relational databases. The ER diagram strengths are abstraction, generality, ...